Every time there's news from Mozilla we see a lot of takes around here along the lines of: they're clueless, their heads are in the sand, they don't know their userbase.
Alternative interpretation: We're looking at another case very much like Bluesky - a corporation with somewhat-openwashed branding which knows exactly who their userbase is, hates it, and wants a different one.
The rationale is clear enough; the browser is just a massive opportunity for datamining. The "AI" startups can only dream of controlling a browser with even the marketshare of Firefox. In that light, it's no use having a userbase of technically competent, privacy-aware dissidents who can work around the extractive dark patterns. Let's face it people, we're not profitable to surveillance capitalism